/*-
 * Copyright (c) 2011 Ondrej Fischer <ondrej.fischer@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef ESPRESS_PORT_HPP
#define EXPRESS_PORT_HPP


namespace express {


    /**
     * Class Port
     * 
     * 
     */
    class Port : public Job {


    public:

        /**
         * Class Descriptor
         * 
         * 
         */
        class Descriptor {
            
            /**
             * 
             */
            virtual Job& create(string id) {
                return options.length > 0
                    ? ConfigPort(config, deps, fetch, build)
                    :       Port(        deps, fetch, build);
            }

        };

    private:
        Job::Task deps ;
        Job::Task fetch;
        Job::Task build;

    public:
        Port(Job::Operation& d, Job::Operation& f, Job::Operation& b)
        : deps(this*, d), fetch(this*, f), build(this*, b) {
            build.requires(fetch);
            fetch.requires(deps);
        }

        virtual Job::Task& initialTask() {return deps;}

    };


    /**
     * Class ConfigPort
     * 
     * Port that has some configuration options available
     */
    class ConfigPort : public Port {
        
        Job::Task config;

    public:
        ConfigPort(Job::Operation& c, Job::Operation& d, Job::Operation& f, Job::Operation& b)
        : Port(d, f, b), config(this*, c) {
            Port::initialTask().requires(config);
        }

        virtual Job::Task& initialTask() {return config;}

    };


}


#endif //EXPRESS_PORT_HPP
